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From: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
To: linux-kernel@vger.kernel.org, linux-media@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-sunxi@lists.linux.dev
Cc: Yong Deng <yong.deng@magewell.com>,
	Paul Kocialkowski <paul.kocialkowski@bootlin.com>,
	Mauro Carvalho Chehab <mchehab@kernel.org>,
	Chen-Yu Tsai <wens@csie.org>,
	Jernej Skrabec <jernej.skrabec@gmail.com>,
	Samuel Holland <samuel@sholland.org>,
	Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
	Maxime Ripard <mripard@kernel.org>,
	Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Subject: [PATCH v6 29/43] media: sun6i-csi: Tidy capture configure code
Date: Fri, 26 Aug 2022 20:32:26 +0200	[thread overview]
Message-ID: <20220826183240.604834-30-paul.kocialkowski@bootlin.com> (raw)
In-Reply-To: <20220826183240.604834-1-paul.kocialkowski@bootlin.com>

Some misc code cleanups and preparation for upcoming changes.

Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
---
 .../sunxi/sun6i-csi/sun6i_csi_capture.c       | 105 ++++++++----------
 1 file changed, 46 insertions(+), 59 deletions(-)

diff --git a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.c b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.c
index 73c485678f24..ed17e427a3a7 100644
--- a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.c
+++ b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.c
@@ -353,133 +353,120 @@ static enum csi_input_seq get_csi_input_seq(struct sun6i_csi_device *csi_dev,
 static void
 sun6i_csi_capture_configure_interface(struct sun6i_csi_device *csi_dev)
 {
+	struct device *dev = csi_dev->dev;
+	struct regmap *regmap = csi_dev->regmap;
 	struct v4l2_fwnode_endpoint *endpoint =
 		&csi_dev->bridge.source_parallel.endpoint;
+	unsigned char bus_width = endpoint->bus.parallel.bus_width;
+	unsigned int flags = endpoint->bus.parallel.flags;
 	u32 pixelformat, field;
-	unsigned char bus_width;
-	u32 flags;
-	u32 cfg = 0;
-	bool input_interlaced = false;
+	u32 value = SUN6I_CSI_IF_CFG_IF_CSI;
 
 	sun6i_csi_capture_format(csi_dev, &pixelformat, &field);
 
 	if (field == V4L2_FIELD_INTERLACED ||
 	    field == V4L2_FIELD_INTERLACED_TB ||
 	    field == V4L2_FIELD_INTERLACED_BT)
-		input_interlaced = true;
-
-	bus_width = endpoint->bus.parallel.bus_width;
-
-	if (input_interlaced)
-		cfg |= SUN6I_CSI_IF_CFG_SRC_TYPE_INTERLACED |
-		       SUN6I_CSI_IF_CFG_FIELD_DT_PCLK_SHIFT(1) |
-		       SUN6I_CSI_IF_CFG_FIELD_DT_FIELD_VSYNC;
+		value |= SUN6I_CSI_IF_CFG_SRC_TYPE_INTERLACED |
+			 SUN6I_CSI_IF_CFG_FIELD_DT_PCLK_SHIFT(1) |
+			 SUN6I_CSI_IF_CFG_FIELD_DT_FIELD_VSYNC;
 	else
-		cfg |= SUN6I_CSI_IF_CFG_SRC_TYPE_PROGRESSIVE;
+		value |= SUN6I_CSI_IF_CFG_SRC_TYPE_PROGRESSIVE;
 
 	switch (endpoint->bus_type) {
 	case V4L2_MBUS_PARALLEL:
-		cfg |= SUN6I_CSI_IF_CFG_IF_CSI;
-
-		flags = endpoint->bus.parallel.flags;
-
 		if (bus_width == 16)
-			cfg |= SUN6I_CSI_IF_CFG_IF_CSI_YUV_COMBINED;
+			value |= SUN6I_CSI_IF_CFG_IF_CSI_YUV_COMBINED;
 		else
-			cfg |= SUN6I_CSI_IF_CFG_IF_CSI_YUV_RAW;
+			value |= SUN6I_CSI_IF_CFG_IF_CSI_YUV_RAW;
 
 		if (flags & V4L2_MBUS_FIELD_EVEN_LOW)
-			cfg |= SUN6I_CSI_IF_CFG_FIELD_NEGATIVE;
+			value |= SUN6I_CSI_IF_CFG_FIELD_NEGATIVE;
 		else
-			cfg |= SUN6I_CSI_IF_CFG_FIELD_POSITIVE;
+			value |= SUN6I_CSI_IF_CFG_FIELD_POSITIVE;
 
 		if (flags & V4L2_MBUS_VSYNC_ACTIVE_LOW)
-			cfg |= SUN6I_CSI_IF_CFG_VREF_POL_NEGATIVE;
+			value |= SUN6I_CSI_IF_CFG_VREF_POL_NEGATIVE;
 		else
-			cfg |= SUN6I_CSI_IF_CFG_VREF_POL_POSITIVE;
+			value |= SUN6I_CSI_IF_CFG_VREF_POL_POSITIVE;
 
 		if (flags & V4L2_MBUS_HSYNC_ACTIVE_LOW)
-			cfg |= SUN6I_CSI_IF_CFG_HREF_POL_NEGATIVE;
+			value |= SUN6I_CSI_IF_CFG_HREF_POL_NEGATIVE;
 		else
-			cfg |= SUN6I_CSI_IF_CFG_HREF_POL_POSITIVE;
+			value |= SUN6I_CSI_IF_CFG_HREF_POL_POSITIVE;
 
 		if (flags & V4L2_MBUS_PCLK_SAMPLE_RISING)
-			cfg |= SUN6I_CSI_IF_CFG_CLK_POL_RISING;
+			value |= SUN6I_CSI_IF_CFG_CLK_POL_RISING;
 		else
-			cfg |= SUN6I_CSI_IF_CFG_CLK_POL_FALLING;
+			value |= SUN6I_CSI_IF_CFG_CLK_POL_FALLING;
 		break;
 	case V4L2_MBUS_BT656:
-		cfg |= SUN6I_CSI_IF_CFG_IF_CSI;
-
-		flags = endpoint->bus.parallel.flags;
-
 		if (bus_width == 16)
-			cfg |= SUN6I_CSI_IF_CFG_IF_CSI_BT1120;
+			value |= SUN6I_CSI_IF_CFG_IF_CSI_BT1120;
 		else
-			cfg |= SUN6I_CSI_IF_CFG_IF_CSI_BT656;
+			value |= SUN6I_CSI_IF_CFG_IF_CSI_BT656;
 
 		if (flags & V4L2_MBUS_FIELD_EVEN_LOW)
-			cfg |= SUN6I_CSI_IF_CFG_FIELD_NEGATIVE;
+			value |= SUN6I_CSI_IF_CFG_FIELD_NEGATIVE;
 		else
-			cfg |= SUN6I_CSI_IF_CFG_FIELD_POSITIVE;
+			value |= SUN6I_CSI_IF_CFG_FIELD_POSITIVE;
 
 		if (flags & V4L2_MBUS_PCLK_SAMPLE_FALLING)
-			cfg |= SUN6I_CSI_IF_CFG_CLK_POL_RISING;
+			value |= SUN6I_CSI_IF_CFG_CLK_POL_RISING;
 		else
-			cfg |= SUN6I_CSI_IF_CFG_CLK_POL_FALLING;
+			value |= SUN6I_CSI_IF_CFG_CLK_POL_FALLING;
 		break;
 	default:
-		dev_warn(csi_dev->dev, "Unsupported bus type: %d\n",
-			 endpoint->bus_type);
+		dev_warn(dev, "unsupported bus type: %d\n", endpoint->bus_type);
 		break;
 	}
 
 	switch (bus_width) {
 	case 8:
-		cfg |= SUN6I_CSI_IF_CFG_DATA_WIDTH_8;
+	/* 16-bit YUV formats use a doubled width in 8-bit mode. */
+	case 16:
+		value |= SUN6I_CSI_IF_CFG_DATA_WIDTH_8;
 		break;
 	case 10:
-		cfg |= SUN6I_CSI_IF_CFG_DATA_WIDTH_10;
+		value |= SUN6I_CSI_IF_CFG_DATA_WIDTH_10;
 		break;
 	case 12:
-		cfg |= SUN6I_CSI_IF_CFG_DATA_WIDTH_12;
-		break;
-	case 16: /* No need to configure DATA_WIDTH for 16bit */
+		value |= SUN6I_CSI_IF_CFG_DATA_WIDTH_12;
 		break;
 	default:
-		dev_warn(csi_dev->dev, "Unsupported bus width: %u\n", bus_width);
+		dev_warn(dev, "unsupported bus width: %u\n", bus_width);
 		break;
 	}
 
-	regmap_write(csi_dev->regmap, SUN6I_CSI_IF_CFG_REG, cfg);
+	regmap_write(regmap, SUN6I_CSI_IF_CFG_REG, value);
 }
 
 static void sun6i_csi_capture_configure_format(struct sun6i_csi_device *csi_dev)
 {
+	struct regmap *regmap = csi_dev->regmap;
 	u32 mbus_code, pixelformat, field;
-	u32 cfg = 0;
-	u32 val;
+	u8 input_format, input_yuv_seq, output_format;
+	u32 value = 0;
 
 	sun6i_csi_capture_format(csi_dev, &pixelformat, &field);
 	sun6i_csi_bridge_format(csi_dev, &mbus_code, NULL);
 
-	val = get_csi_input_format(csi_dev, mbus_code, pixelformat);
-	cfg |= SUN6I_CSI_CH_CFG_INPUT_FMT(val);
-
-	val = get_csi_output_format(csi_dev, pixelformat, field);
-	cfg |= SUN6I_CSI_CH_CFG_OUTPUT_FMT(val);
+	input_format = get_csi_input_format(csi_dev, mbus_code, pixelformat);
+	input_yuv_seq = get_csi_input_seq(csi_dev, mbus_code, pixelformat);
+	output_format = get_csi_output_format(csi_dev, pixelformat, field);
 
-	val = get_csi_input_seq(csi_dev, mbus_code, pixelformat);
-	cfg |= SUN6I_CSI_CH_CFG_INPUT_YUV_SEQ(val);
+	value |= SUN6I_CSI_CH_CFG_OUTPUT_FMT(output_format);
+	value |= SUN6I_CSI_CH_CFG_INPUT_FMT(input_format);
+	value |= SUN6I_CSI_CH_CFG_INPUT_YUV_SEQ(input_yuv_seq);
 
 	if (field == V4L2_FIELD_TOP)
-		cfg |= SUN6I_CSI_CH_CFG_FIELD_SEL_FIELD0;
+		value |= SUN6I_CSI_CH_CFG_FIELD_SEL_FIELD0;
 	else if (field == V4L2_FIELD_BOTTOM)
-		cfg |= SUN6I_CSI_CH_CFG_FIELD_SEL_FIELD1;
+		value |= SUN6I_CSI_CH_CFG_FIELD_SEL_FIELD1;
 	else
-		cfg |= SUN6I_CSI_CH_CFG_FIELD_SEL_EITHER;
+		value |= SUN6I_CSI_CH_CFG_FIELD_SEL_EITHER;
 
-	regmap_write(csi_dev->regmap, SUN6I_CSI_CH_CFG_REG, cfg);
+	regmap_write(regmap, SUN6I_CSI_CH_CFG_REG, value);
 }
 
 static void sun6i_csi_capture_configure_window(struct sun6i_csi_device *csi_dev)
-- 
2.37.1


  parent reply	other threads:[~2022-08-26 18:36 UTC|newest]

Thread overview: 52+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-08-26 18:31 [PATCH v6 00/43] Allwinner A31/A83T MIPI CSI-2 and A31 ISP / CSI Rework Paul Kocialkowski
2022-08-26 18:31 ` [PATCH v6 01/43] media: sun6i-csi: Define and use driver name and (reworked) description Paul Kocialkowski
2022-08-26 18:31 ` [PATCH v6 02/43] media: sun6i-csi: Refactor main driver data structures Paul Kocialkowski
2022-08-26 18:32 ` [PATCH v6 03/43] media: sun6i-csi: Tidy up platform code Paul Kocialkowski
2022-08-26 18:32 ` [PATCH v6 04/43] media: sun6i-csi: Always set exclusive module clock rate Paul Kocialkowski
2022-08-26 18:32 ` [PATCH v6 05/43] media: sun6i-csi: Define and use variant to get " Paul Kocialkowski
2022-08-26 18:32 ` [PATCH v6 06/43] media: sun6i-csi: Use runtime pm for clocks and reset Paul Kocialkowski
2022-08-26 18:32 ` [PATCH v6 07/43] media: sun6i-csi: Tidy up Kconfig Paul Kocialkowski
2022-08-26 18:32 ` [PATCH v6 08/43] media: sun6i-csi: Tidy up v4l2 code Paul Kocialkowski
2022-08-26 18:32 ` [PATCH v6 09/43] media: sun6i-csi: Tidy up video code Paul Kocialkowski
2022-08-26 18:32 ` [PATCH v6 10/43] media: sun6i-csi: Pass and store csi device directly in " Paul Kocialkowski
2022-08-26 18:32 ` [PATCH v6 11/43] media: sun6i-csi: Register the media device after creation Paul Kocialkowski
2022-08-26 18:32 ` [PATCH v6 12/43] media: sun6i-csi: Remove controls handler from the driver Paul Kocialkowski
2022-10-31  9:06   ` Jernej Škrabec
2022-08-26 18:32 ` [PATCH v6 13/43] media: sun6i-csi: Add media ops with link notify callback Paul Kocialkowski
2022-08-26 18:32 ` [PATCH v6 14/43] media: sun6i-csi: Introduce and use video helper functions Paul Kocialkowski
2022-08-26 18:32 ` [PATCH v6 15/43] media: sun6i-csi: Move csi buffer definition to main header file Paul Kocialkowski
2022-08-26 18:32 ` [PATCH v6 16/43] media: sun6i-csi: Add bridge v4l2 subdev with port management Paul Kocialkowski
2022-10-31  9:10   ` Jernej Škrabec
2022-08-26 18:32 ` [PATCH v6 17/43] media: sun6i-csi: Rename sun6i_video to sun6i_csi_capture Paul Kocialkowski
2022-08-26 18:32 ` [PATCH v6 18/43] media: sun6i-csi: Add capture state using vsync for page flip Paul Kocialkowski
2022-10-31  9:15   ` Jernej Škrabec
2022-08-26 18:32 ` [PATCH v6 19/43] media: sun6i-csi: Rework register definitions, invert misleading fields Paul Kocialkowski
2022-08-26 18:32 ` [PATCH v6 20/43] media: sun6i-csi: Add dimensions and format helpers to capture Paul Kocialkowski
2022-08-26 18:32 ` [PATCH v6 21/43] media: sun6i-csi: Implement address configuration without indirection Paul Kocialkowski
2022-08-26 18:32 ` [PATCH v6 22/43] media: sun6i-csi: Split stream sequences and irq code in capture Paul Kocialkowski
2022-08-26 18:32 ` [PATCH v6 23/43] media: sun6i-csi: Move power management to runtime pm " Paul Kocialkowski
2022-08-26 18:32 ` [PATCH v6 24/43] media: sun6i-csi: Move register configuration to capture Paul Kocialkowski
2022-08-26 18:32 ` [PATCH v6 25/43] media: sun6i-csi: Rework capture format management with helper Paul Kocialkowski
2022-08-26 18:32 ` [PATCH v6 26/43] media: sun6i-csi: Remove custom format helper and rework configure Paul Kocialkowski
2022-08-26 18:32 ` [PATCH v6 27/43] media: sun6i-csi: Add bridge dimensions and format helpers Paul Kocialkowski
2022-08-26 18:32 ` [PATCH v6 28/43] media: sun6i-csi: Get mbus code from bridge instead of storing it Paul Kocialkowski
2022-08-26 18:32 ` Paul Kocialkowski [this message]
2022-08-26 18:32 ` [PATCH v6 30/43] media: sun6i-csi: Introduce bridge format structure, list and helper Paul Kocialkowski
2022-08-26 18:32 ` [PATCH v6 31/43] media: sun6i-csi: Introduce capture " Paul Kocialkowski
2022-08-26 18:32 ` [PATCH v6 32/43] media: sun6i-csi: Configure registers from format tables Paul Kocialkowski
2022-08-26 18:32 ` [PATCH v6 33/43] media: sun6i-csi: Introduce format match structure, list and helper Paul Kocialkowski
2022-08-26 18:32 ` [PATCH v6 34/43] media: sun6i-csi: Implement capture link validation with logic Paul Kocialkowski
2022-08-26 18:32 ` [PATCH v6 35/43] media: sun6i-csi: Get bridge subdev directly in capture stream ops Paul Kocialkowski
2022-08-26 18:32 ` [PATCH v6 36/43] media: sun6i-csi: Move hardware control to the bridge Paul Kocialkowski
2022-10-31  9:18   ` Jernej Škrabec
2022-08-26 18:32 ` [PATCH v6 37/43] media: sun6i-csi: Rename the capture video device to sun6i-csi-capture Paul Kocialkowski
2022-08-26 18:32 ` [PATCH v6 38/43] media: sun6i-csi: Cleanup headers and includes, update copyright lines Paul Kocialkowski
2022-08-26 18:32 ` [PATCH v6 39/43] media: sun6i-csi: Add support for MIPI CSI-2 to the bridge code Paul Kocialkowski
2022-08-26 18:32 ` [PATCH v6 40/43] media: sun6i-csi: Only configure capture when streaming Paul Kocialkowski
2022-08-26 18:32 ` [PATCH v6 41/43] media: sun6i-csi: Add extra checks to the interrupt routine Paul Kocialkowski
2022-08-26 18:32 ` [PATCH v6 42/43] media: sun6i-csi: Request a shared interrupt Paul Kocialkowski
2022-08-26 18:32 ` [PATCH v6 43/43] MAINTAINERS: Add myself as sun6i-csi maintainer and rename/move entry Paul Kocialkowski
2022-09-07  8:47 ` [PATCH v6 00/43] Allwinner A31/A83T MIPI CSI-2 and A31 ISP / CSI Rework Hans Verkuil
2022-09-07 10:03   ` Paul Kocialkowski
2022-10-21 14:13 ` Paul Kocialkowski
2022-10-31  9:21   ` Sakari Ailus

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